Just a note, the Beagle project has been abandoned in favor of the Reusable Payload Module:
Quite simply, it's a logistics vehicle with the ability to capture things in its grasp. In the case of a malfunctioning satellite, the target is captured by simple encapsulation. If it's too large by means of solar panels, as much as possible is done to make them fit - either by simply folding them or detaching them (by means of the satellite or through the RPM cutting them off) and pulling them inside.
After which, the chamber is very slightly pressurized and flooded with expanding foam, holding the cargo in place. The propulsion unit performs a deorbit burn and is jettisoned, and the capsule maneuvers using its own (very limited) RCS system to a reentry over a body of water.
Upon reaching a suitable altitude, parachutes are deployed, pulling a metal ring upward to prevent the vehicle from landing nose-first. Just before water impact, airbags are deployed as further rollover prevention.
In addition to orbital recovery, it serves as a reusable delivery and return vehicle for payloads (such as the MPOD-V).
It can also be fitted with a crew cabin, allowing transport for (hopefully) up to ten astronauts. The same cabin can have its seats removed and be used for pressurized cargo.
Also, I'm trying to decide whether to have the finished version of Sparrow be a single model with different iterations for different stages, or compose it of individual modules. The former would be easy to implement but you couldn't do things like construct your own station. The latter would be incredibly complex and likely a bit of a performance hog.
